Caloosahatchee and Okeechobee Conditions Report

Purpose

This webpage/report is intended to aggregate information from different agencies (i.e. USACE, SFWMD, FWC, USGS and NOAA) into one spot to help inform local government agencies and stakeholders on conditions within Lake Okeechobee, the Caloosahatchee River and Estuary and Coastal southwest Florida. The data provided here should be considered preliminary and are subject to change.

USACE Data Summary

Daily discharge volume in Acre-Feet per day for the last 14-days. Data Source: USACE
10-12	0	982	7980	8	0	0	0	-1016	0	1057	7166	2584	3987	3082	4,270.411
10-11	0	976	5737	5	0	0	0	-1047	0	951	7345	2769	3382	2539	4,520.328
10-10	0	988	7805	8	0	0	0	-994	0	1408	7688	2158	1892	2884
10-09	0	1004	6032	94	0	0	0	-422	0	1749	7400	1567	547	3705
10-08	0	988	4085	5	0	0	0	-30	0	762	7137	230	300	2291	4,482.642
10-07	0	1002	2979	3	0	0	0	14	0	30	6430	333	260	2789	4,466.774
10-06	0	984	3101	4	0	0	0	18	0	34	7204	190	301	3122	4,623.469
10-05	0	978	1805	11	0	0	0	-4	0	15	7718	133	520	3003	3,475.039
10-04	0	958	4302	12	0	0	0	-10	0	222	8733	284	869	2870	2,959.337
10-03	0	1002	3384	52	0	0	0	0	0	260	9334	133	1176	3090	3,207.271
10-02	0	998	5452	70	0	0	0	-121	0	367	10725	301	2045	2592	1,120.661
10-01	0	1035	3307	8	0	0	0	-87	0	34	10951	420	2596	2174	2,401.982
09-30	0	1492	6109	83	0	0	0	2	0	222	12674	323	2793	2707	4,258.510
09-29	0	3972	9384	140	0	0	0	-196	0	650	14180	668	3435	3586	4,359.667
1 Includes discharges from Fisheating Creek, S71, S72, S84, S84X, S65E, and S65EX1
2 Estimated as S12s+(S333+S333N)-S356. If no data is present (i.e. -NR-) either S12s, S333s or S356 data is not available.

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Average and total net discharge volume in Acre-Feet per day for the last 7-days. Data Source: USACE
Average	0	989	5388	18	0	0	0	-497	0	856	7196	1405	1524	2916	4,472.725
Total	0	6924	37719	127	0	0	0	-3477	0	5991	50370	9832	10669	20412	22,363.624

Average and total net discharge volume in Acre-Feet per day for the last 14-days. Data Source: USACE
Average	0	1240	5104	36	0	0	0	-278	0	554	8906	864	1722	2888	3,678.841
Total	0	17359	71462	503	0	0	0	-3894	0	7761	124685	12095	24103	40435	44,146.092

Lake Flows: In the past 7 days the total outflow from Lake Okeechobee was 159 AF with 0 AF to the Caloosahatchee through S-77, 127 AF through S-310 in Clewiston, and 0 AF to the EAA through S-351, S-352, and S-354. The total net inflow to the Lake was 53,879 AF (50,370 AF from Fisheating Creek, S-71, S-72,S-84s, S-65EX, and S-65EX1) with a total backflow volume of 3,509 AF from C10A. Water conservation areas received flows of 9,832 AF, 10,669 AF, and 20,412 AF at WCA1, WCA2, and WCA3, respectively. Everglades National Park received 22,364 AF.

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Lake Okeechobee Level: 15.84 ft (Operational Management Band)

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Lake Okeechobee Inflow: 5319 cfs

Last Week: 15.61 ft

Lake Okeechobee Outflow: 0 cfs

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Lake Okeechobee Inflow: 4451 cfs

Last Week: 15.61 ft

Lake Okeechobee Outflow: No cfs

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Weekly Rainfall Total:

WP Franklin ≥ 0.74"

Ortona ≥ 0.00"

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Moore Haven 1.29"

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Moore Haven ≥ 0.98"

Lake Okeechobee

Stage Elevation

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>>>>>>> 237b8812c2082bff2699683574b0c85ae3dd2c80 Lake Okeechobee daily average stage elevation for water year 2022 (WY2022) relative to the last two water years (red line) relative to the Lake Okeechobee Regulation Schedule (LORS) . Data are provisional and subject to change.

Stage and recession rates this time for the current and last three water years
10-12	2019	14.25	-0.09	-0.46
10-12	2020	13.50	0.07	-0.37
10-12	2021	16.18	0.32	1.37
10-12	2022	15.84 A	0.23	0.98
A Value provided by SFWMD DBKEY:N3466
B -0.5 ft 30-d⁻¹ maximum 30-day Recession Rate for HAB Deviation

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As of 10/12/2021 the mean stage elevation in Lake Okeechobee is within the Operational Low Sub- Management Band at a stage elevation of 15.84 feet (NGVD29).

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>>>>>>> 237b8812c2082bff2699683574b0c85ae3dd2c80 Lake Okeechobee 7-day and 30-day water level recession/ascension rates during WY2022. Negative values indicate falling water levels (recession) and positive values indicate raising water level (ascension) during this 7-day period . Data are provisional and subject to change.

Regional Rainfall

Weekly (10/06 - 10/12) rainfall totals along the Caloosahatchee River
S79 (WP Franklin)	0.8
S78 (Ortona)	1.7
S77 (Moore Haven)	2.1
1 Data Source: SFWMD DBHYDRO (DBKEYS 16414,15495,16415) and USACE reports
2 Based on data from 10/06/2021 - 10/12/2021

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Relative Algae Condition

Sonde monitoring locations within Lake Okeechobee conducted by SFWMD.

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>>>>>>> 237b8812c2082bff2699683574b0c85ae3dd2c80 Daily Chlorophyll, Phycocyanin,relative ratio of Phycocyanin (Phyco) relative to Phyco and Chlorophyll (Chl) and Turbidity within Lake Okeechobee monitored by SFWMD. Chlorophyll and Phycocyanin are plotted on log-scale. Thresholds of concern/risk identified for Chlorophyll (20 and 40 μg/L) and Phycocyanin (40 μg/L; Cotterill et al 2019 & Macário et al 2015). Data are provisional and subject to change.

Cotterill et al (2019) Phycocyanin sensors as an early warning system for cyanobacteria blooms concentrations: a case study in the Rotorua lakes. New Zealand Journal of Marine and Freshwater Research 53:555–570.
Macário et al (2015) New insights towards the establishment of phycocyanin concentration thresholds considering species-specific variability of bloom-forming cyanobacteria. Hydrobiologia 757:155–165.

Weekly mean water quality sonde Chlorophyll and Phycocyanin concentration at monitoring locations across Lake Okeechobee
L001	38	85	Warning	High Concern
L005	55	68	High Concern	High Concern
L006	27	99	Warning	High Concern
LZ40	410	81	High Concern	High Concern
POLESOUT1	93	74	High Concern	High Concern
POLESOUT3	63	59	High Concern	High Concern
1 Based on data from 10/07/2021 - 10/13/2021
2 Chlorophyll Categories: Min. Concern: values < 20 μg L⁻¹ Warning: values ≥ 20μg L⁻¹ and <40 μg L⁻¹ High Concern: values ≥ 40 μg L⁻¹
3 Phycocyanin Categories: Min. Concern: values < 40 μg L⁻¹ High Concern: values ≥ 40 μg L⁻¹

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Cyanobacteria Index for Lake Okeechobee for 2021-10-12 (Data Source: NOAA NCCOS)

Blue-Green Algae Sampling Results

<<<<<<< HEAD ======= >>>>>>> 237b8812c2082bff2699683574b0c85ae3dd2c80 Blue-green Algae sampling results for the last 30-days for the 10 county area (Lee, Collier, Hendry, Glades, Okeechobee, Martin, Palm Beach, Broward, Miami-Dade and Monroe). Data from FDEP Blue-green algae dashboard Data are provisional and subject to change.

Of the 88 samples collected, cyanobacteria was dominate in 47 samples, 43 samples had toxins present ranging from 0.26 to 44 μg L⁻¹ (does not include non-detects).

Caloosahatchee River Estuary

Discharge

Fort Myers Yacht Basin salinity (SCCF-RECON) and S79 discharge (SFWMD) data for the last six months. Data are provisional and subject to change.

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>>>>>>> 237b8812c2082bff2699683574b0c85ae3dd2c80 Fort Myers Yacht Basin salinity (SCCF-RECON) and S79 discharge (SFWMD) data for the last last 30 days. Data are provisional and subject to change.

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>>>>>>> 237b8812c2082bff2699683574b0c85ae3dd2c80 S-77 (from Lake Okeechobee) and S-79 (to Tidal Basin) flow data along the C-43 and Caloosahatchee River. C-43 Basin Flow was calculated as the difference from S-77 and S-79. Data are provisional and subject to change.

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>>>>>>> 237b8812c2082bff2699683574b0c85ae3dd2c80 Daily, 14-day moving average and 30-day moving average discharge for S-79 relative to the Northern Estuaries RECOVER performance measure and the established minimium flows and levels (MFLs) for the recent 30-day period. Data are provisional and subject to change.

As of Oct 12, discharges conditions are within the stress RECOVER salinity envelope.

Cumulative discharge for S-79 (to Tidal Basin) and S-77 (from Lake Okeechobee) for the last three Florida Water Years (May - April). Day of water year is analogous to day of year with Day 1 = May 1^st. Data are provisional and subject to change.

Chlorophyll, Phycocyanin & fDOM

Top: Daily dissolved organic matter (fluorescence DOM). Middle: Daily relative fluorescence Chlorophyll and Phycocyanin observed at the floating sensor bouy at S-79 monitoring by USGS. Bottom: The relative ratio of Phycocyanin (Phyco) relative to Phyco and Chlorophyll (Chl). Data are provisional and subject to change.

Estuary Salinity

Daily average bottom salinity data for the last 14-days from sampling locations within the tidal Caloosahatchee River Estuary relative to oyster health (Sanibel, Shell Point and Cape Coral) and tape grass (Vallisneria americana) health (Ft. Myers only) conditions. Data are provisional and subject to change.

Red Tide

<<<<<<< HEAD ======= >>>>>>> 237b8812c2082bff2699683574b0c85ae3dd2c80 Red tide sampling results for the last 30-days from just south of Tampa Bay to the Florida Keys. Data from NOAA HABSOS Program Data are provisional and subject to change.

Count of samples within each abundance category within the greater Caloosahatchee River Estuary (see grey box on map)
not present/background (0-1,000)	90
very low (>1,000-10,000)	2
low (>10,000-100,000)	2
medium (>100,000-1,000,000)	---
high (>1,000,000)	---

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Chlorophyll fluorescence for coastal southwest Florida for 2021-10-12 (Data Source: NOAA NCCOS)

Version information: NEWS

Daily discharge volume in Acre-Feet per day for the last 14-days. Data Source: USACE
Date	S77	S78	S79	S310	S351	S352	S354	L8	S308	S80	NthLake 1	WCA1	WCA2	WCA3	ENP 2
10-12	0	982	7980	8	0	0	0	-1016	0	1057	7166	2584	3987	3082	4,270.411
10-11	0	976	5737	5	0	0	0	-1047	0	951	7345	2769	3382	2539	4,520.328
10-10	0	988	7805	8	0	0	0	-994	0	1408	7688	2158	1892	2884
10-09	0	1004	6032	94	0	0	0	-422	0	1749	7400	1567	547	3705
10-08	0	988	4085	5	0	0	0	-30	0	762	7137	230	300	2291	4,482.642
10-07	0	1002	2979	3	0	0	0	14	0	30	6430	333	260	2789	4,466.774
10-06	0	984	3101	4	0	0	0	18	0	34	7204	190	301	3122	4,623.469
10-05	0	978	1805	11	0	0	0	-4	0	15	7718	133	520	3003	3,475.039
10-04	0	958	4302	12	0	0	0	-10	0	222	8733	284	869	2870	2,959.337
10-03	0	1002	3384	52	0	0	0	0	0	260	9334	133	1176	3090	3,207.271
10-02	0	998	5452	70	0	0	0	-121	0	367	10725	301	2045	2592	1,120.661
10-01	0	1035	3307	8	0	0	0	-87	0	34	10951	420	2596	2174	2,401.982
09-30	0	1492	6109	83	0	0	0	2	0	222	12674	323	2793	2707	4,258.510
09-29	0	3972	9384	140	0	0	0	-196	0	650	14180	668	3435	3586	4,359.667
1 Includes discharges from Fisheating Creek, S71, S72, S84, S84X, S65E, and S65EX1
2 Estimated as S12s+(S333+S333N)-S356. If no data is present (i.e. -NR-) either S12s, S333s or S356 data is not available.

Average and total net discharge volume in Acre-Feet per day for the last 7-days. Data Source: USACE
Statistic	S77	S78	S79	S310	S351	S352	S354	L8	S308	S80	NthLake	WCA1	WCA2	WCA3	ENP
Average	0	989	5388	18	0	0	0	-497	0	856	7196	1405	1524	2916	4,472.725
Total	0	6924	37719	127	0	0	0	-3477	0	5991	50370	9832	10669	20412	22,363.624

Stage and recession rates this time for the current and last three water years
Date (Month-Day)	Water Year	Stage (ft, NGVD29)	7-Day Recession Rate (ft 7-d⁻¹)	30-Day Recession Rate (ft 30-d⁻¹) B
10-12	2019	14.25	-0.09	-0.46
10-12	2020	13.50	0.07	-0.37
10-12	2021	16.18	0.32	1.37
10-12	2022	15.84 A	0.23	0.98
A Value provided by SFWMD DBKEY:N3466
B -0.5 ft 30-d⁻¹ maximum 30-day Recession Rate for HAB Deviation

Weekly (10/06 - 10/12) rainfall totals along the Caloosahatchee River
Mointoring Location 1	Weekly Rainfall Total (inches) 2
S79 (WP Franklin)	0.8
S78 (Ortona)	1.7
S77 (Moore Haven)	2.1
1 Data Source: SFWMD DBHYDRO (DBKEYS 16414,15495,16415) and USACE reports
2 Based on data from 10/06/2021 - 10/12/2021

Weekly mean water quality sonde Chlorophyll and Phycocyanin concentration at monitoring locations across Lake Okeechobee
Site	7-day Mean Chlorophyll Conc. (μg L⁻¹) 1	7-day Mean Phycocyanin Conc. (μg L⁻¹) 1	Green Algal Concern Category 2	Blue-green Algae Concern Category 3
L001	38	85	Warning	High Concern
L005	55	68	High Concern	High Concern
L006	27	99	Warning	High Concern
LZ40	410	81	High Concern	High Concern
POLESOUT1	93	74	High Concern	High Concern
POLESOUT3	63	59	High Concern	High Concern
1 Based on data from 10/07/2021 - 10/13/2021
2 Chlorophyll Categories: Min. Concern: values < 20 μg L⁻¹ Warning: values ≥ 20μg L⁻¹ and <40 μg L⁻¹ High Concern: values ≥ 40 μg L⁻¹
3 Phycocyanin Categories: Min. Concern: values < 40 μg L⁻¹ High Concern: values ≥ 40 μg L⁻¹

Count of samples within each abundance category within the greater Caloosahatchee River Estuary (see grey box on map)
Cell Abundance (Cells L⁻¹)	Number of Samples
not present/background (0-1,000)	90
very low (>1,000-10,000)	2
low (>10,000-100,000)	2
medium (>100,000-1,000,000)	---
high (>1,000,000)	---